Looking for the best OBD2 scanner under $100? Whether you want to read check-engine codes, monitor live data, or check battery health, plenty of affordable scanners can handle daily diagnostics. Below you’ll find a hand-picked list of ten reliable options, each tested for ease of use, compatibility, and value.
Quick Product Comparison
Our Top 10 Best Obd2 Scanner Under $100 Reviews – Expert Tested & Recommended
1. MOTOPOWER MP69033 Car OBD2 Scanner Code Reader with CAN Engine Diagnostic for All OBD2 Cars Since 1996
The MOTOPOWER MP69033 is simple and direct. I liked how it works without apps. Plug it in and read codes on a clear 2.8″ screen. It supports CAN and most OBD2 protocols, so it fits many cars.
Key Features That Stand Out
✓ Built-in OBD2 DTC lookup library for quick code definitions
✓ Supports 9 protocols incl. OBD-II & CAN for wide compatibility
✓ 2.8″ LCD with backlight and contrast adjustment
✓ No battery required — powers from the OBD port
Why We Recommend It
This scanner is easy for first-timers. It reads and clears codes fast. The screen and buttons are simple to use in the driveway or garage.
Best For
Best for drivers who want a no-fuss, handheld scanner that works right away without a phone.
Pros and Cons
Pros:
- Clear, bright screen makes reading codes easy
- Wide protocol support for compatibility
- Built-in DTC definitions save web searches
- Durable and plug-and-play design
Cons:
- Limited advanced features compared to app-based tools
- Small screen for viewing lots of live data
Customer Reviews
Customer Review: ⭐⭐⭐⭐⭐This OBD2 scanner works exactly as expected. It was very easy to use—just plug it into the car and it immediately reads the engine codes with no setup or app needed. The screen is clear, and the buttons are simple to navigate, even for someone with no mechanical experience. It helped me underst
Customer Review: Easy to use and works with CAN software as stated. You’d first have to verify what software your vehicle uses to determine its functionality. For my car it works well, very reasonable price.
2. ThinkDiag2 All-System Bidirectional OBD2 Bluetooth Scanner for iOS Android with CAN-FD, ECU Codes, 15+ Resets
The ThinkDiag2 is a small Bluetooth dongle that turns your phone into a powerful scanner. It supports CAN-FD and offers bidirectional testing and many resets. The app is full-featured and fast.
Key Features That Stand Out
✓ Full-system diagnostics with ECU code access
✓ CAN-FD support for newer vehicles
✓ Bidirectional tests and active commands
✓ 15+ service reset functions for maintenance
Why We Recommend It
ThinkDiag2 brings pro-level tools to pocket size. It is great if you want deep diagnostics without a pro-level price. The app-guided actions make tricky tasks easier.
Best For
Best for DIYers and techs who want advanced functions like bidirectional tests and CAN-FD support on a budget.
Pros and Cons
Pros:
- Very powerful feature set for the price
- Supports modern CAN-FD vehicles
- Bidirectional control for active tests
- Compact and portable
Cons:
- Requires a smartphone and app for full use
- Some advanced functions may need purchases or subscriptions
Customer Reviews
Customer Review: The Thinkdiag2 Bluetooth OBDII Scanner is a professional-grade diagnostic tool that elevates the capabilities of your smart device to those of a seasoned technician. Notably, it’s the sole tool in its category to support CAN FD protocol vehicles, particularly advantageous for post-2020 GM models, st
Customer Review: If you’re a DIYer who wants to stop guessing which part to throw at a problem, or a tech who wants a powerful “pocket” size scanner. this is the one. I like my snap on but it’s nice having something for quicker diags that don’t really require the $5k scanners. It’s the first Bluetooth dongle I actu
3. BlueDriver Bluetooth OBDII Scan Tool for iPhone and Android Diagnoses Engine, ABS, SRS on Vehicles Since 1996
BlueDriver is a favorite for many DIYers. The iOS/Android app delivers repair reports and enhanced diagnostics. Setup is fast and the repair reports help you know what to fix.
Key Features That Stand Out
✓ Enhanced diagnostics for engine, ABS, SRS and more
✓ Unlimited repair reports tailored to your vehicle
✓ Simple Bluetooth pairing with phones
✓ Compact dongle that stays in the car
Why We Recommend It
BlueDriver offers high value and a great app experience. The repair reports are practical and help you avoid guesswork at the shop.
Best For
Best for owners who want phone-based diagnostics with professional-style reports.
Pros and Cons
Pros:
- Detailed repair reports save time
- Works well with many vehicle systems
- Simple to use and reliable connection
- Compact and durable design
Cons:
- Requires phone for full functionality
- Some advanced features may be app-limited
Customer Reviews
Customer Review: Been using mine for 3 years and it has been great. I leave it always plugged into my truck so that it is ready to use if I get a check engine light or even if I’m just curious about how the engine is running.It is well worth having, as it has saved more than its cost in not having to pay for diag ti
Customer Review: I have owned several scanners, this is by far the best. This connects to your OBD, you turn on the app on your phone and you are ready to rock. I am impressed by extra features that are usually only available on larger more professional models. I keep this in the car in case I am out or a friend run
4. A-Premium AD100 Universal OBD2 Scanner Code Reader OBDII/EOBD/CAN Live Data Battery Test for Cars Since 1996
The A-Premium AD100 is compact but packs useful tools like live data and battery testing. It handles I/M readiness and freeze frame data well. The interface is straightforward.
Key Features That Stand Out
✓ Live data stream and freeze frame support
✓ Battery test and voltage monitoring
✓ Built-in I/M readiness checks for emissions
✓ Compact design that fits in the glove box
Why We Recommend It
AD100 balances features and price. It gives key diagnostics and a battery check in one affordable tool.
Best For
Best for owners who want live data and a battery test without spending a lot.
Pros and Cons
Pros:
- Good mix of live data and battery testing
- Easy I/M readiness checks
- Small, portable, and well built
Cons:
- Screen is small for long data sessions
- Not as feature-rich as tablet-based scanners
Customer Reviews
Customer Review: Worked flawlessly on my Mercedes AMG. Clear diagnostics, simple interface, and accurate results. Having peace of mind before going to a repair shop is priceless.For the price, this scanner offers exceptional value and priceless peace of mind.
Customer Review: This AD100 Universal OBD2 Scanner was easy to use and understand, with clear instructions in the manual. I enjoyed learning and using it. It accurately identified my engine problem and cleared the engine light after repairs. The connectivity was reliable and worked perfectly. This AD100 Universal OB
5. VDIAGTOOL VD10 OBD2 Scanner Code Reader with Freeze Frame and I/M Readiness for Cars Since 1996
The VDIAGTOOL VD10 is a practical, no-nonsense code reader. It shows freeze frame data and I/M readiness. It’s meant for quick checks and is easy to use without apps.
Key Features That Stand Out
✓ Freeze frame data for post-fault analysis
✓ I/M readiness checks for emissions
✓ Simple read/clear and DTC lookup
Why We Recommend It
VD10 is reliable and inexpensive. It does the basics well and is a good backup tool for DIY repairs and pre-inspection checks.
Best For
Best for hobbyists and drivers who want a simple, reliable code reader for routine checks.
Pros and Cons
Pros:
- Easy to use with clear menus
- Accurate code reads and definitions
- Affordable and compact
Cons:
- Limited advanced diagnostics
- No Bluetooth or app integration
Customer Reviews
Customer Review: This worked perfect for what I needed. Very easy to use and easy to read the codes. Quality seems really good, especially for the price.
Customer Review: As a “shade tree” mechanic fixing my own vehicles I can’t do much without a good (cheap) code reader. My old BT model would not connect to my phone, so I ordered this all-in-one setup. Works great, easy to use, no phone app or finicky BT required. Most surprisingly it comes with a decent little m
6. OBD2 Scanner Code Reader with Reset, Mode 6/8 and I/M Readiness for Cars Since 1996
This device offers a large built-in DTC library and Mode 6/8 support. It’s focused on giving you data quickly and helping you decide next steps. The interface is practical and straightforward.
Key Features That Stand Out
✓ Massive 35,901 DTC lookup library
✓ Mode 6 and Mode 8 diagnostic info
✓ I/M readiness and quick resets
Why We Recommend It
This scanner is great if you want more diagnostic detail than a basic reader. The large DTC library helps interpret obscure codes.
Best For
Best for users who want detailed codes and advanced OBD modes without spending much.
Pros and Cons
Pros:
- Huge DTC database for quick lookups
- Supports advanced modes for deeper diagnostics
- Works with a wide range of vehicles
Cons:
- User interface can feel dense for beginners
- Screen size limits long text visibility
Customer Reviews
Customer Review: I have tried several scanners before this one. This scanner works with my vehicle 1st try and is EZ peasy to operate. It worked on a 2003 Infiniti Q45 that other scan tools would not. Others that work via Bluetooth with cell phone would connect but were too complicated to quickly diagnose. This scan
Customer Review: Works very well with my Volvo. Has saved me money!Read more
7. BluSon YM319 OBD2 Scanner with Battery Tester, Live Data and Freeze Frame for Cars Since 1996
The BluSon YM319 blends code reading with battery health checks. Live data plotting helps you see trends while the freeze frame captures fault moments.
Key Features That Stand Out
✓ Integrated battery tester and one-click battery check
✓ Live data graphs and freeze frame capture
✓ Simple menu and compact size
Why We Recommend It
BluSon is a handy tool if you care about battery health and want live data visualization at a budget price.
Best For
Best for drivers who want combined engine diagnostics and battery checks in one unit.
Pros and Cons
Pros:
- Useful battery-testing feature
- Live data and freeze frame for deeper checks
- Affordable and easy to use
Cons:
- Battery test accuracy varies by condition
- Not as many advanced service functions as pricier models
Customer Reviews
Customer Review: For the price point this is all you need, its clears codes and tells you everything you could need to know.
Customer Review: For the price point this is all you need, its clears codes and tells you everything you could need to know.Read more
8. OBD2 Scanner and 12V Battery Tester Code Reader with Live Data for Cars and Motorcycles
This combo unit handles engine codes and 12V battery tests. It works on motorcycles and cars and offers quick I/M readiness checks for emissions prep.
Key Features That Stand Out
✓ 12V battery tester built-in
✓ Live data for engine monitoring
✓ I/M readiness and quick emissions checks
Why We Recommend It
A solid multipurpose tool for those who want battery checks plus OBD2 scanning without extra gadgets.
Best For
Best for riders and drivers who want a compact diagnostic and battery tool they can carry on trips.
Pros and Cons
Pros:
- Dual-purpose as scanner and battery tester
- Good compatibility across vehicles
- Easy I/M readiness check for inspections
Cons:
- Battery test may lack advanced reporting
- Menu navigation can be slow on some units
Customer Reviews
Customer Review: This car battery jump starter is an excellent all in one tool that every vehicle owner should keep on hand. The power output is very strong and has no trouble starting cars, trucks, and even larger engines. It works quickly and reliably, which gives peace of mind when dealing with a dead battery at
Customer Review: This saved me yesterday. My car wasn’t starting at the gas station after I’ve just filled up because of the battery and as a woman I got scared. But this helped me and it was so easy to use all I did was pop the bonnet and attach the cords to my battery and gave it a jump start. I would definitely r
9. ThinkDiag OBD2 Bluetooth Full-System Bidirectional Diagnostic Scanner for iOS and Android with 15-plus Resets and ECU Functions
ThinkDiag offers full-system diagnostics and many reset functions. It can do special functions like ABS bleeding or adaptation on supported vehicles. The app is intuitive for guided repairs.
Key Features That Stand Out
✓ Full-system diagnostics for comprehensive checks
✓ 15+ reset and calibration functions
✓ Potential feature activation and ECU functions
Why We Recommend It
This is a good mid-level Bluetooth tool for people who want more than basic code reads but still want phone-based convenience.
Best For
Best for DIY mechanics who need full-system access and service resets.
Pros and Cons
Pros:
- Extensive reset and maintenance functions
- Good coverage of vehicle systems
- Solid app support and documentation
Cons:
- Some functions depend on vehicle model
- May require app activation steps that take time
Customer Reviews
Customer Review: Purchased this to address ECM memory issue with Subaru. Certain engine codes get stuck in ECM memory and cannot be cleared. Well documented on YouTube. This tool had the Special Function->Test Mode Change that allowed clearing of the memory!! Local shops did the original repairs and could not clear
Customer Review: This Thinkdiag device is amazing! The item was well packaged and also fits in a some sort of a cushion inside the box. It appears to be strong and connects flawlessly. I Installed the Thinkdiag+ app, created an account, and activated the device with the information included in the box. Then, I plugg
10. XTOOL Anyscan A30M Wireless Bidirectional OBD2 Scanner for Android and iPhone All-System, 26 Resets, EPB
The XTOOL Anyscan A30M gives wide system access and many service resets. It pairs wirelessly and includes lifetime app updates. It is a strong choice for routine maintenance and deeper diagnostics.
Key Features That Stand Out
✓ All-system diagnostics with bidirectional tests
✓ 26 reset functions including EPB and oil reset
✓ Lifetime software updates and stable connectivity
Why We Recommend It
XTOOL A30M offers many service functions usually found on pricier tools. It’s stable and keeps improving with updates.
Best For
Best for owners who want a feature-rich wireless scanner for regular maintenance and special services.
Pros and Cons
Pros:
- Extensive reset functions and updates
- Good wireless performance and app UI
- Works across many vehicle makes
Cons:
- Initial setup may take time to learn
- Some advanced functions need vehicle-specific support
Customer Reviews
Customer Review: The media could not be loaded.The XTOOL A30M has most (if not all) of the scan, monitor, and control functions to assist the home, or pro car mechanic to assess the condition of a vehicle’s onboard diagnostic info, with the additional capability of testing / energizing critical components in assorte
Customer Review: As a DIY mechanic, this Bluetooth OBD2 scanner has been very useful. It uses your phone as the display, which makes reading data and navigating menus much easier than a small handheld scanner. Setup took a little figuring out the first time, but after that it connects quickly and works reliably.The
Complete Buying Guide for Best Obd2 Scanner Under $100
Essential Factors We Consider
When choosing the best obd2 scanner under $100, we looked at ease of use, compatibility, and useful features. A readable screen or a stable app matters. Support for I/M readiness, live data, and a DTC lookup library helps a lot. We also checked build quality and how easy it is to interpret results.
Budget Planning
Set a clear budget. Under $100 you can get basic handheld scanners or Bluetooth dongles. Handheld units are plug-and-play and don’t need a phone. Bluetooth dongles are small and powerful but often need in-app purchases for advanced functions. Decide whether you value portability, features, or out-of-the-box simplicity.
Final Thoughts
There’s no one perfect scanner for everyone. If you want simple, choose a handheld like the MOTOPOWER MP69033. If you want phone-based power, opt for Bluetooth tools like ThinkDiag2 or BlueDriver. Think about what you’ll use it for most and pick features that match those tasks.
Frequently Asked Questions
Q: Will an OBD2 scanner work on any car made after 1996?
A: Most gasoline cars sold in the U.S. since 1996 are OBD2-compliant and will work with standard OBD2 scanners. Some vehicles use manufacturer-specific protocols or need special adapters for advanced functions.
Q: Do Bluetooth OBD2 scanners need a phone app?
A: Yes. Bluetooth dongles rely on apps for display and advanced features. Basic code reading and clearing require the app to show results. Some apps offer limited free features and charge for advanced functions.
Q: Can these scanners clear my check engine light?
A: Yes. Most scanners on this list can read and clear generic and some manufacturer trouble codes. Clearing the light does not fix the underlying problem. Only fix the fault before clearing for lasting results.
Q: Is live data important in a scanner?
A: Live data is useful for diagnosing intermittent issues and verifying repairs. It shows real-time sensor outputs that help you spot problems beyond simple codes.
Thanks for reading this roundup of the best obd2 scanner under $100. Pick the model that fits your routine and comfort level. If you want a reliable, no-fuss tool, go handheld. If you prefer advanced features, choose a Bluetooth option and pair it with your phone. Ready to buy? Click any of the “Check Price on Amazon” buttons above to compare prices and get the best deal.
